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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtAddOn.JsonDb module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QDebug>
#include "hbtree.h"
#include "hbtreetransaction.h"
HBtreeTransaction::HBtreeTransaction(HBtree *btree, HBtreeTransaction::Type type)
: btree_(btree), type_(type), rootPage_(0xFFFFFFFF), tag_(0), revision_(0)
{
Q_ASSERT(btree_);
}
HBtreeTransaction::~HBtreeTransaction()
{
Q_ASSERT(btree_);
}
bool HBtreeTransaction::put(const QByteArray &key, const QByteArray &value)
{
Q_ASSERT(btree_);
return btree_->put(this, key, value);
}
bool HBtreeTransaction::get(const QByteArray &key, QByteArray *pValue)
{
Q_ASSERT(pValue);
QByteArray val = get(key);
if (val.isEmpty())
return false;
*pValue = val;
return true;
}
QByteArray HBtreeTransaction::get(const QByteArray &key)
{
Q_ASSERT(btree_);
return btree_->get(this, key);
}
bool HBtreeTransaction::del(const QByteArray &key)
{
Q_ASSERT(btree_);
return btree_->del(this, key);
}
bool HBtreeTransaction::commit(quint64 tag)
{
Q_ASSERT(btree_);
if (isReadOnly()) {
btree_->abort(this);
return true;
}
return btree_->commit(this, tag);
}
void HBtreeTransaction::abort()
{
Q_ASSERT(btree_);
btree_->abort(this);
}
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